Update README.md

README.md

@@ -10,7 +10,9 @@ The procedure was the following:
 
 ## Basic stats
 
-The average scores of the good and bad half are 0.0014 and 0.67, respectively. The average score of the whole dataset is 0.33; the median is 0.51. The weighted average score (weighted by document length) is 0.45.
+The average scores of the good and bad half are 0.0014 and 0.67, respectively. The average score of the whole dataset is 0.33; the median is 0.51. 
+
+However, the weighted average score (weighted by document length) is 0.45. Correlation between score and document length is 0.2.
 
 Score histogram: